Periscope STEM Project Worksheet

Science experiments lesson 28: Mirror periscope · Set 728 · 40 questions

What you do (Bounce, bounce, see): 1. An adult cuts a window near the top on one side of the carton and near the bottom on the other. 2. Tape one mirror at 45° behind each window, the two mirrors facing each other. 3. Look into the bottom window and adjust the mirrors until the view is clear. 4. Peep over a table or wall — never point it at the Sun.

1. 1.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the object we look at”? (a) we measure it (b) we change it (c) we keep it the same
2. 2.🔭 What does a periscope let you do? (a) see in the dark (b) hear far sounds (c) see over a wall (d) see germs
3. 3.🧺 Which of these is needed for the periscope? (a) vinegar (b) a balloon (c) an empty juice carton (d) a battery cell
4. 4.🔮 Predict: you cover the top mirror with paper. What do you see? (a) a rainbow (b) a brighter view (c) two pictures (d) only darkness
5. 5.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a ruler (b) turmeric powder (c) a pencil (d) an empty juice carton
6. 6.🛟 You must never point a periscope or a mirror at ___. (a) a wall (b) a friend’s toy (c) a tree (d) the Sun
7. 7.🔍 Which is the odd one out? (a) a mirror (b) a dull brick (c) aluminium foil (d) a shiny steel plate
8. 8.🧺 Do we need two small mirrors for the periscope? (a) needed (b) not needed
9. 9.⚖️ Fair test — does the angle of the mirrors change how clearly you see? Which of these is the one thing we change? (a) the same light (b) the object we look at (c) the same mirrors (d) the angle of the mirrors
10. 10.🧺 Do we need an empty juice carton for the periscope? (a) not needed (b) needed
11. 11.True or false: a shiny steel plate reflects light poorly. (a) False (b) True
12. 12.🧺 Do we need turmeric powder for the periscope? (a) needed (b) not needed
13. 13.🧺 Do we need sticky tape for the periscope? (a) not needed (b) needed
14. 14.🛟 Which mirrors are safest for a children’s periscope? (a) plastic safety mirrors (b) big wall mirrors (c) loose glass panes (d) broken glass bits
15. 15.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the angle of the mirrors is the one thing we change. (a) True (b) False
16. 16.🔭 Which of these reflects light well? (a) aluminium foil (b) dark soil (c) black cloth (d) a dull brick
17. 17.🔮 Predict: you make the periscope tube twice as tall. You can see over ___. (a) the ground (b) nothing at all (c) only short walls (d) taller walls
18. 18.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) two small mirrors (b) vinegar (c) sticky tape (d) a pencil
19. 19.🧺 Which of these is needed for the periscope? (a) a battery cell (b) two small mirrors (c) a magnet (d) yeast
20. 20.🧺 Which of these is not needed for the periscope? (a) an empty juice carton (b) a pencil (c) a ruler (d) a balloon
21. 21.🔭 How many mirrors does a simple periscope use?
22. 22.🔭 Does black cloth reflect light well or poorly? (a) reflects light well (b) reflects light poorly
23. 23.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: how clear the view is is the one thing we change. (a) False (b) True
24. 24.True or false: yeast is needed for the periscope. (a) False (b) True
25. 25.🛟 Who should cut the holes in the juice carton? (a) a friend who is running (b) nobody needs to (c) a grown-up (d) the youngest child
26. 26.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the same mirrors”? (a) we keep it the same (b) we change it (c) we measure it
27. 27.🔍 Which is the odd one out? (a) black cloth (b) a mirror (c) still clear water (d) aluminium foil
28. 28.⚖️ Fair test — does the angle of the mirrors change how clearly you see? True or false: the same mirrors is kept the same. (a) False (b) True
29. 29.True or false: a ruler is not needed for the periscope. (a) True (b) False
30. 30.True or false: aluminium foil reflects light poorly. (a) False (b) True
31. 31.🧺 Which of these is needed for the periscope? (a) a balloon (b) a magnet (c) turmeric powder (d) a ruler
32. 32.🧺 Do we need yeast for the periscope? (a) needed (b) not needed
33. 33.🧺 Three of these are needed for the periscope. Which one is NOT needed? (a) a balloon (b) two small mirrors (c) an empty juice carton (d) a pencil
34. 34.🔭 How many times does light bounce off a mirror in a simple periscope?
35. 35.⚖️ Fair test — does the angle of the mirrors change how clearly you see? What do we do with “the angle of the mirrors”? (a) we keep it the same (b) we change it (c) we measure it
36. 36.🔭 Which of these reflects light well? (a) a mirror (b) a dull brick (c) a rough wooden board (d) dark soil
37. 37.🔭 Which of these reflects light poorly? (a) dark soil (b) a shiny steel plate (c) aluminium foil (d) still clear water
38. 38.True or false: dark soil reflects light well. (a) False (b) True
39. 39.True or false: yeast is not needed for the periscope. (a) True (b) False
40. 40.True or false: turmeric powder is not needed for the periscope. (a) True (b) False

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